royal blue



a deep blue, often with a faint reddish tinge.

Origin of royal blue

First recorded in 1810–20 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for royal blue

  • He was a young man wearing the royal-blue uniform of a Space Cadet.

    Sabotage in Space|Carey Rockwell
  • And upon all these expeditions she wore an air of conscious correctness and the royal-blue velvet cape.

    Little Aliens|Myra Kelly
  • The shopkeeper described the automobile as a royal-blue limousine of twenty-four horse-power made by the firm of Peugeon & Co.

British Dictionary definitions for royal blue

royal blue


  1. a deep blue colour
  2. (as adjective)a royal-blue carpet
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012